Q.

Among the fuels given below, the one with highest calorific value is –

A. Coke
B. Coal
C. Wood
D. Natural gas
Answer» D. Natural gas
Explanation: The calorific values of different fuels (in Kcal/kg) in dry state are: Wood: 3500; Coal: 4000-7000; Coke: 6500; and Natural Gas: 8600 Kcal/kg.
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